Improvement in glass deflectors for lamps



w. H. MATTHEWS' Lamp Burner. Ptented April 22, 1862.

UNITED STATES PATENT OEEICE.

VILLIAM Il. MATTIIEVVS, OF CHELSEA, MASSACHUSETTS, ASSIGNOR TO THE UNION GLASS COMPANY.

lMPROVEMENT IN GLASS DEFLECTORS FOR LAMPS.

Speciiication forming part of Letters Patent No. 35,061, dated April 22, 1862.

To c/.ZZ whom it may concern:

Be it known that LWILLIAM H. MATTHEWS, a citizen ot the United States of America, and a resident of Chelsea, in the county of Sut't'olk and State of Massachusetts, have invented a new and useful Improvement in Lamps Provided with Glass Cones or Detlectors; and I do hereby declare the same to be fully described in the following specification and rep resented in the accompanying drawings, of which- I `igure l is a side View ot a burner as furnished with my invention. Fig. 2 is a vertical section oil it. Fig. is a side view, and Fig. 4 an under side view, of the glass cone or deitlector and its metallic-holder as separated from the lamp-cap. Figs. 5 and G are separate top views of the cap and base rings of the detlector-holder, While Figs. '7 and S are vertical sections ot' each.

My in vention or improvement h as reference particularly to the conical deilector when made of glass and so as to be transparent in the part which ireumscribes the llame of the wick. Ot late a deilector of such kind has been introduced and used in coal-oil lamps to excellent advantage. Owing, however, to its flange bein made ol' glass, it is very likely to become broken, es iecially while the deflector is being put in place within the lamp-cap or.

may be in the act ot being removed therefrom. To avoid this diiiiculty, I provide the glass dellcetor with a metallic holderseparate from the lamp-eap and removable therefrom with the detlector, and I make the saidholder in two parts-viz., a flanged cap and a basering-held together and to the flange ot the glass detiector by pins or studs, as hereinafter described.

In the drawings, A denotes the lamp-cap, while ll is the glass del'lector or cone, of which aY is the llange. This ilangeis placedin ametallic base-ring, l), which, with the said flange, .is covered by a flanged annulus or cap, c, which surroumls the lower part ot the conical body ot' the deliector and extends over the deiiector-iiange a and down below the edge of the base -ring b, as seen in the drawings. There are two projections, c f, extended inward from the flange of the cap-ring and below and against the base-ring. These proj ections serve to coniine the two rings together and in placeV on the glass dellector, the basering being made with a notch, g, at its periphery to enable it to be separated from the cal;- ring, such separation being rendered easy of accomplishment by simply turning the basering around within the cap-ring until the notch of the former comes into conjunction with one ot' the Studs ef.

The employment ot the separate cap and base rings constituting the deilector-holder renders it easy at any time to renew the deiiector in case of breakage. Furthermore, the glass chimney I is placed directly upon the upper ring ot the detiectonsupporter, which, resting on the lamp-cap, answers the purpose of a support for the chimney, and so completely insulates it from the glass del-lector, as to prevent the chimney from breaking the flange of the deilector-an accident of frequent occurrence when the glass chimneyis made to rest directly upon the glass flange of the deiiector. Furthermore, the employment of the metallic holder with the glass detlector and chimney serves to give great steadiness to the latter, or enables it to be held iirmly in place to much greater advantage and very much less liability of breakage than when made to rest on the glass ilange of the deiiector.

I claim- The above-described mode of constructing the glass-deiieetor holdermviz., the separate cap and base rings provided with means of connecting. them, as set forth, in order that they may be applied to the glass dei'lectoran d its flange, as specified.

Witnesses:

R. H. EDDY, F. I). HALE, Jr. 

